Supplementary material for Dew Harvesting using a Radiative Cooling Textile Material .docx

The field evaluation of the dew harvesting system across 27 cycles demonstrated consistent performance trends influenced by environmental parameters such as relative humidity, temperature, wind speed, and sky clarity. Average nighttime temperatures ranged between 26.4 °C and 29 °C, with relative humidity typically exceeding 85%, creating favorable conditions for condensation. Optimal dew yields were associated with lower wind speeds (generally below 1.5 m/s) and moderate to high sky clarity, which enhanced radiative cooling efficiency. Peak hourly theoretical yields frequently occurred during the early morning hours (04:00–07:00) when temperatures were lowest and humidity highest. Notably, multiple cycles recorded individual hourly yields exceeding 30 mL, underscoring the system’s capacity under ideal microclimatic conditions.

针对该集露系统开展的27个周期现场评估显示，其性能表现呈现出一致的变化趋势，且受相对湿度、气温、风速以及天空通透度等环境参数影响。试验期间夜间平均气温介于26.4℃至29℃之间，相对湿度普遍高于85%，为结露过程创造了适宜条件。最优集露量与较低风速（通常低于1.5 m/s）以及中至高天空通透度相关，后者可提升辐射冷却效率。峰值小时理论集露量常出现在清晨时段（04:00–07:00），此时气温最低、湿度最高。值得注意的是，多个周期中记录到单小时集露量超过30 mL的案例，这凸显了该系统在理想微气候条件下的性能潜力。